HOUSTON -- The Rangers have placed outfielder Jim Adduci on the seven-day concussion disabled list and recalled infielder/outfielder Ryan Rua from Triple-A Round Rock. Rua, a right-handed hitter, went into the lineup on Friday night, batting fifth and playing first base against Astros left-hander Brett Oberholtzer.

But the Rangers are planning to play him as much as possible, even against right-handed pitching.

"He has come here to play," manager Ron Washington said. "We're going to look at him and see what he has to offer. His bat is the big appeal."

Rua has played all four infield positions and left field in his Minor League career since being drafted in the 18th round of the 2011 First-Year Player Draft out of Lake Erie (Oh.) College. Washington said he'll most likely play first and left field although second base is his best position.

"I'm pretty comfortable at all of them," Rua said. "Whatever they want me to do. This is my life-long dream."

Rua was hitting .306 with 26 doubles, 18 home runs and 74 RBIs in a combined 129 games for Double-A Frisco and Triple-A Round Rock this season. He had a .378 on-base percentage and a .488 slugging percentage.

He is the third player from the 2011 draft to join the Rangers along with pitchers Nick Martinez and Phil Klein.

Adduci hit his head when he tumbled over second baseman Rougned Odor while making a terrific running catch in the fourth inning of Thursday's game. Adduci fell hard on the warning track in foul territory and banged the back of his head. He then slid head-first into the padded wall in front of the stands.

The Rangers reported that Adduci was experiencing "concussion-like" symptoms on Friday and he remained behind at the team hotel. He may resume baseball activities in the next few days.